code: def meta_native_dropout_backward_default(
      grad: torch.Tensor, mask: torch.Tensor, scale: float
  ):
      return torch.empty_like(grad)
  
imports: from typing import List, Optional, Union
  import torch
  from torch.utils._pytree import tree_map
label_desc: Use image node_id 27 for calling a global function with example usage: meta_native_dropout_backward_default(grad, mask, scale) and returns: torch